Aerial



FIG. 1 is a front perspective view of an aerial according to the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back thereof;

FIG. 4 is a right thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the figures depict environmental structure and form no part of the claimed design. 

The ornamental design for an aerial, as shown and described. 